electronic

  1. R

    Electronic Books

    I’m looking to buy some electronic books. Would anyone have any recommendations?
  2. H

    Horstmann electronic 7 only heating water using boost not timed off peak....

    The unit only heats water using the programmed boost and when pressed in the 1 2 or Cont boost function. I have checked the off-peak time which is set to 2.30-7.30 am - this is when the Horstmann should do its thing...? But it's not heating the water so only the top cylinder works on boost, the...
  3. J

    BTEC Level 4 HNC Diploma in Electrical & Electronic Engineering

    I start my BTEC Level 4 HNC Diploma in Electrical & Electronic Engineering in the new year, what book do you recommend to get to help me with my course? or any advice. I can do additional two more units, looking to do Automation, Robotics and PLCs, what other one do you recommend? What would...
  4. PCBWay

    PCBWay 6th Project Design Contest - Participate and get a free Raspberry Pi Pico*!

    So far, PCBWay has successfully hosted 5 editions of design contests. Under the diverse themes of previous contests, we have received numerous high-quality and creative projects, allowing us to appreciate the countless fascinating ideas in the minds of engineers. We have always believed that...
  5. cdtsilva

    B Type RCD's and electronic loads

    I have seen recent changes that require (most) EV chargers and solar systems to be fitted with a type B RCCD. I work with power semiconductors and inverters for a living and have one of these in my workshop with a dedicated circuit. The question arises on any downstream RCD's that may be...
  6. R

    IET BS7671 Electronic Copy required

    Hi all, anyone got BS7671 electronic I can have a copy of. I don't mind paying for it
  7. Lucien Nunes

    MEET on BBC TV (the Museum of Electrical and Electronic Engineering)

    I'm delighted to announce that some time in the next few days / weeks, BBC Breakfast will be airing a short piece about MEET (The Museum of Electrical and Electronic Technology.) I'm expecting it to include an interview in which I explain our original plan and the impact of my declining health...
  8. _q12x_

    Electronic Lock using 74LS74 DTFF

    Im making this cct for fun. Ive seen it in a video on youtube, with different IC's. So I decided to adapt the cct to what IC's I already have. And it is working perfectly, both in simulator and in reality (on breadboard). But while building it, testing it, and playing with it, I noticed a...
  9. D

    Information on purchasing electronic components

    I would be interested to hear from members where they purchase there components from?, especially if you can buy just one or two, and not have to buy ten at a time. Also I would like to know which manufactures of electronic components that member’s use, because of the quality of there products?.
  10. R

    Electronic Ballast Life

    Hi: I am the custodian at Peru Public Library, Peru IL. About 20 years ago, I installed about 150 new General Electric brand electronic ballasts and new 48" T8 size fluorescent lamps. This replaced magnetic ballasts and T12 size bulbs. We received a grant to cover the cost as the conversion...
  11. S

    What can you do with Electrical, electronic product service, and installation engineer qualification

    Hi, I hope I'm posting this in the right section of the forum, and if not please forgive me. As the title says, what can you do with the Electrical, electronic product service, and installation engineer qualification? Struggling to find what sort of work I would be able to do with it? would it...
  12. G

    18W electronic ballast for a LED lamp

    Hello gents I'm just after some clarification, I have a kitchen light fitting that uses a 2D 28W compact fluoresent lamp that I'd like to convert to a LED 2D lamp that I've bought because I thought it would work with the existing control gear. I realise now that I have a magnetic rather...
  13. R

    Horstmann Electronic 7 Water Heater - not working

    Hi all, Yesterday I returned home to no hot water after a few days away. After a brief inspection it seems the fault lies with the Horstmann Electronic 7 Water Heater. The display is still visible but the controller is completely unresponsive. If I select either of the following buttons...
  14. C

    Horstmann Electronic 7

    I have the above control which 99% of the time works fine. Occasionally I wake up and the powe has gone in the night with the result of no hot water. Switch the master switch off at the fuse board and leave for 5mins before switching back on. Reset the clock and then Boost to get some water, all...
  15. hodge228

    horstmann electronic 7 power/display issue

    Hi All, I have been having an odd issue with My Horstmann Electronic 7. It had been working normally and then I found that the display had turned off (seemed like no power). This is despite the mains being on. When switching the main switch off, the display then comes back, albeit with no power...
  16. P

    Question about Electronic 7 Horstmann

    Hi everyone! I just moved a new flat last week and this is my first time using boiler heater. And I am confused with the use of that timer. I have never looked into it until hot water running out yesterday. After pressing 'BOOST' (Pic 1), I got the hot water after awhile. In the next day, when...
  17. Lucien Nunes

    MEET - the Museum of Electrical and Electronic Technology

    It's happening - the new way to discover and explore every aspect of electricity and electronics. An interactive exhibition and demonstration of everything from vintage arcade games to power station machinery to scary fuse boxes to bizarre electromedical quack gadgets. The project has been...
  18. T

    level 4 hnc in electrical and electronic engineering.

    Hi I’ve just started a level 4 hnc in electrical and electronic engineering. I’m wondering if anyone can help me with the maths assignment
  19. J

    UK Horstmann Electronic 7 only working with boost, not timer

    Hi, We have just moved into a new flat with the old Horstmann electronic 7 timer for our immersion boiler. We just moved from a flat with the exact same system and never had any issues. We have set the timer and the times for the off peak boiling and have had no hot water for 3 days. The boiler...
  20. E

    Easy pulse generator

    Hi, I am trying to make a short pulse generator from any pulse input. By this I mean I want a final output with a fixed pulse width no matter what input I have. I tried to do it with a not gate linked to a and gate. It did work but apparently the solution can be based on ONE component only...
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